!!Please NOTE: this is MALE RS232 to DB9 SERIAL CABLE ,Not VGA!!!It is 9 pin, NOT 15 pin!! Look carefully of the Pin is match with your device. Before ordering , please confirm the interface gender is waht you need. After receiving ,please read user manual /instruction at first and download the Driver at first from FT232 Official website or Cisco website . Customer service always online. Wide range of applications: USB to RS232 DB9 male serial adapter can work with your Windows (10 / 8.1 / 8 / 7 / Vista / XP), MAC or Linux system and other platforms. USB adapter is designed to connect to serial devices, such as serial modem with DB9, ISDN terminal adapter, digital camera, label writer, palm computer, barcode scanner, PDA, cash register, CNC, PLC controller, tax printer, POS, bar code scanner, label printer, etc High quality: the latest ftdi chip set ensures more reliable and faster operation. USB 2.0 to RS232 male DB9 console cable will support 1Mbps date transfer rate Most convenient: simple installation, plug and play, COM port creation, baud rate can be changed to the required settings. USB power supply - no external power supply required. Exquisite design: Gold Plated USB RS232 connector and PVC cable ensure high performance and extra durability. Powered by USB port, this USB to DB9 series RS232 adapter cable is designed to fit easily into your handbag. With the continuous development of PC industry, USB interface is gradually replacing various low-speed peripheral interfaces of old PC. however, many important devices in industrial environment still use RS-232 interface design, so many users use USB to RS-232 converter to realize data transmission between PC and RS-232 equipment. USB to DB9 serial port line is a universal USB / RS-232 converter, which can convert single end USB signal into RS-232 signal without external power supply and compatible with USB and RS-232 standards. The converter has zero delay automatic receiving and sending conversion, unique I / O circuit automatically controls the direction of data flow, plug and play. It is suitable for all existing communication software and interface hardware. The interface converter can be point-to-point, data communication rate is 300-460800bps, and the communication mode supported is USB to RS-232 conversion. Such as: LED, monitor, monitor, monitor, monitor, monitor, monitor, etc